I'm ready, he's not and that's ok.

I am 20 and my boyfriend is 19 we have been together for 2 years now. We have talked about the future and what it holds, you know in regards to marriage, living together, babies (in that order!haha). we are both in college getting our degrees (yay us!) but I really want a baby. I don't know if it's just me, but I can feel my bio clock ticking! 😭 my mom wasn't able to conceive for the longest time, I'm a miracle baby, my biggest fear is that I to will not be able to conceive and I feel like I need to start trying now. I'm I crazy and alone in this?